austin latham



(No Model.) 3- Sheets-Sheet 2. E. A. LATHAM. LEATHER SKIVINGr MACHINE.

Patented Oct. 12, 1886.

I h; L/Emma- M; 1 1 1mm (No Model.) 3 Sheets-Sheet 3.

' E. A. LATHAM.

LEATHER SKIVING MACHINE.

No. 350,753. Patented Oct. 12, 1886.

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N. PETERS UNITED STATES PATENT OFFICE.

TO THE CARVER COTTON-GIN COMPANY, OF SAME PLACE.

LEATHER-SKIVING MACHINE.

SPECIFICATION forming part of Letters P Application filed June 24. 1886. S

To all whom it may concern.-

Be it known that I, E. AUSTIN LATHAM, of East Bridgewater, in the county of Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Leather- Skiving Machines, of which the following, taken in connection with the accompanying drawings, is a specification.

My invention relates to that class of machines that are used for skiving the edges of leather or other similar material, the object being to improve the method of holding the knife, so that the same may be easily and readily adjusted; also to so mount the lower feed wheel that it can be easily adjusted. These objects I attain by the mechanism shown in the accompanying drawings, in whieh- Figure 1 is a side elevation of my invention. Fig. 2 is a longitudinal vertical section showing parts of the machine; Fig. 3, plan of my machine. Fig. a is a front elevation of my machine; and Fig. 5 is a rear elevation, the driving-pulley being omitted.

A represents the base or frame of the ma chine.

B, Figs. 1, 2, 3, and 4, represents the lower feeding-wheel, which is mounted upon a shaft, B, Figs. 1, 2, 4, and 5. This shaft B passes through an eccentric quill, B and is mounted at each end in the frame of the machine, and so arranged that it may be revolved by means of the worm-gear B K, .Fig. 1, and as the shaft B, (see Figs. 1 and 2,) is not in the center of this quill'B, it is evident that if the said quill B is turned in either direction it will cause the shaft B to move up or down, thus adjusting the lower feed-wheel, B, in re lation to the upper feed-wheel, D.

The gage E, Fig. 2, is mounted. in a housing, E and is forced downward by the spring E, which surrounds the lower part of the stem E of the gage. Below the lower end of the stem E a sliding block, E, is placed, the lower end of which rests in a groove, E", Fig. 2, made in the quill B The working-surface of this cam-that is, the part that operates the sliding block Eis concentric with the shaft B, so that the turning of the quill B will not change the relative positions of guide E and 50 the lower feed-wheel, Bthat is, they will both move up or down together. Motion is atent No. 350,753, dated October 12, 1886.

erial No. 206,174. (No model.)

given to the lower feed-wheel, B, by the gear C acting through the shaft B, (see Figs. 1 and 5,) power being communicated to the gear C from the driving-pulley C through the gears C C, Figs. 1 and 5. The upper feed-wheel, D Figs. 1, 2, and 4, is mounted upon a shaft,

D, said shaft D being driven by the gear D Fig. 1, which engages with the gear D 011 the main shaft C, Fig. 1. The shaft D is hung in a swinging frame, L L L L, Figs. 1, 3, and 5, also shown in part at L, Fig. 4. Said frame swinging on the main shaft D is to admit of lifting the upper feed-wheel and knife. That part of the swinging frame represented by L" 6 in Figs. 3 and 5 has passing through it an adjusting-screw, L, the end of which, resting against the frame of the machine, acts as a stop for preventing the swinging frame L L from swinging down so low as to admit of the upper feed-wheel, D, coming in contact with the knife H, Fig. 4. The knife H, Figs. 4 and 5,

is fastened to the. lower part of the arm H by being clamped in a slot, as shown in Fig. The upper end of the arm H is journaled in 7 a clamped housing, H", Figs. 1. and 4. The axial line of the housing H is adjusted so thatif it were extended it would be in line with the interior cutting-corner of the knife H, so that in turning the knife-holding arm H about the said axial line of the housing H it will not advance or withdraw the interior cuttingcorner of the knife H; but it will change the plane of the knife in relation to the surface of the feed-wheel, so as to cut a longer or shorter 8 5 bevel on the edge of the stock being worked upon. The housing H is mounted upon an adjustable plate, H", which is held by a bolt, H", Fig. 5, which passes through a slot, A, Fig. 5.

To prevent wrinkling or strain on the stock as it moves onto and from the knife, the two feeding-wheels B and D have a peripheral motion slightly different-from each other.

I claim-- 9 5 1. In a skiving-machine, the combination of the feed-wheels B D and the knife H with. the arm H and the housing H, all operating together substantially as described, and for the purpose set forth.

2. In a skiving-machine, the combination of the lower feed-wheel, B, and shaft B with the eccentric quill B and worm-gear B K, all optially as described, and for the purpose set erating together substantially as described, 'forth. and for the purpose set forth.

3. In'askiving-machine, the combination of AUSTIN LATHAM' 5 the eccentric quill B, having a cam slot, E Witnesses:

with the block E, and gage E E", and lower ALBERT D. GROVER, feed-wheel, B, all operating together substan MATTHEW M. BLUNT. 

